The main aim of this study was to assess the suitability of different existing test setups for the mechanical characterization of a dimpled interface obtained by casting concrete against dimpled high‐density polyethylene (HDPE) membrane. Even though this type of interface roughening is widely used, especially for monolithic connections between precast elements, to the best of the authors' knowledge there is no research providing any data regarding its roughness parameters, tension, and shear strength, nor its failure modes. To this end, a two‐fold objective was established for this research: (a) to identify and analyze, from a technical standpoint, the available test configurations for characterizing the mechanical performance of interfaces, and (b) to perform an extensive experimental program devoted to characterizing the mechanical performance of a dimpled HDPE membrane—cast concrete interface. The suitability of each test for reproducing the expected stress state and the actual resistance mechanism was analyzed. Moreover, a comparison between tension and shear tests, including its main advantages and disadvantaged are also presented.

中文翻译：

---

不同测试对模压混凝土到混凝土界面的表征的适用性

这项研究的主要目的是评估现有的不同测试设置对通过凹坑高密度聚乙烯（HDPE）膜浇铸混凝土而获得的凹坑界面的机械特性的适用性。尽管广泛使用了这种类型的界面粗糙化处理，尤其是对于预制构件之间的整体连接，但据作者所知，还没有研究提供有关其粗糙度参数，张力和剪切强度及其破坏模式的任何数据。为此，本研究建立了两个目标：（a）从技术角度确定和分析用于表征接口机械性能的可用测试配置，（b）执行广泛的实验程序，以表征凹坑HDPE膜-浇铸混凝土界面的机械性能。分析了每种测试对于重现预期应力状态和实际阻力机制的适用性。此外，还进行了拉伸试验和剪切试验之间的比较，包括其主要优点和缺点。